Design virtual models you can build with LEGO bricks
LeoCad is a free, open source application that allows you to design virtual models you can build with LEGO bricks.
It offers a simple drag and drop interface that lets you select the brick you want to use and drag them into place. You can start creating new models without having to spend too much time learning the application.
There is an extensive library of parts that is organized into categories and can also be search by keyword. You can rotate the view perspective and have multiple views at the same time.
The timeline automatically tracks your progress and can be used to create building instructions with multiple steps.
LeoCAD is fully compatible with the LDraw Standard and related tools. It reads and writes LDR and MPD files so you can share and download models from the internet.
It also uses the LDraw parts library, which has almost 10,000 different parts and keeps receiving updates.
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